Fireman&#39;s spanner



Feb. 24.1925. 1,527,712

, c. c. BAIRD FIREMANS SPANNER Filed April 21, 1924 6 (EZ S.

Patented F eh. 24, 1,925.

PATENT OFFICE- CASSIUS M. CLAY BAIRfD, or CHICAGO, ILLINOIS.

FIREMANS SPANNER.

Application filed April 21, 1924. Serial No. 708,004.

To all clih'om it may concern:

Be it known that I, CAssrUs M. 'CLAY BAIRD, a citizen of the United States of America, and a resident of Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Firemens Spanners, of which the following is a specification.

This invention relates to spannersfor operating the couplings of fire hose, and the object of the invention is to provide an improved spanner suitable for engagement with both the common cylindrical type of r ,lug on" couplings and an improved form of Y of the hose in order projecting sills, etc. A y

Theobjects of the invention are accomplished by the device shown in the drawing in which i Figure l is an end view pling with the spanner applied thereto.

Fig. 2 is a plan view of the coupling and.

. spanner.

Fi 3 is an end view of a coupling provide with cylindrical lugs and having the spanner applied thereto.

Fig. 4c is a sectional detail illustrating the form of the claws or lug-engaging part of the spanner.

Fig. 5 is a sectional detail taken on the line 5-5 of Fig. l. V

Fig. 6 is an end View of a coupling and shows applied thereto a'difierent form of spanner having the improved claw- Fig. '2' is a detail illustrating the type of spanner shown in Fig. 6 in lon 'tudinal' section but with the spanner app ied to a cylmdrical lug rather than the convex type of lug shown in Fig... 6.

Flg. 8 is an end view of the spanner shown in Fig. .6.

It is desirable that spanners for fire hose couplings should be as consistent with ample strength and also formgdto serve as a hook for en aging the ladder rungs, the opposite on of each spanner having an eye by means of which it may be strapped to the hose. The conlug which is curved in the direction of length to properly ride over of a hose coulight as possible, Y

struction shown in Figs.'1-5 fulfills these requirements, while it is also wellformed for coaction with difi'er'ent types of lugs with which the couplings are provided. Figs. 1 and 3 show hose couplings with the different lugs. The lug 1 shown in Fig. 1,

also in Fig. 2, extends in thedirection of length of the coupling and 'is suitably curved on its periphery to ride over projecting shoulders when the hose is drawn or laid out. The lugs 1 are recessed or under-cut at 2 in order to securely receive the claw 3 of the spanner. The cylindrical type of lug 4 shown in Fig. 3 will fit a curved recess or concave seat 5 in the claw between the spreading prongs 6 of the spanner, as indicated in Fig. 5. This curved recess 5 extends in the direction oflugs 4 radially oi? the-coupling when the spanner is in operating position. I

Thehose coupling engaging part 7 of the to spanner is o d-set from the straight handle 8 as is necessary for the claw 3 to encircle the coupling lugs, and to provide a curved shoulder 8 to engage the body of the coupling and to cause part of the coupling to w rotate with the spanner as a unit. The eye for the recephead 10 to fit the coupling and is hollowed e5 out at 11' to receive the coupling lug. The coupling lug is engaged by a shoulder 12 extending between the sides of the operating head of the spanner. This spanner is now modified at one side in order to pro- 00 vide it with a claw 13 suitable for engaging the recess 2 in the form of lug l.

I claim: I 1. A spanner of the class described comprising a handle; and a hosecou ling enga ing part off-set from said hand e to provide a curved shoulder adjacent the handle and an opposed inwardly extending claw at the end of the cou ling engaging part, said claw being provi ed with a concave seat which will extend radially of the coupling when the spanner is in working position.

2. A spanner of the class described comprising a handle, and a hose coupling engaging part ofi-set from said handle to provide a. curved shoulder adjacent the handle and an opposed inwardly extending claw at the end of the coupling engaging part, said claw spreading towards its end and being pro- CASSIUS M. CLAY BAIRD. 

